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Vishay General Semiconductor - Diodes Division 1N6267HE3/54
- Part No.:
- 1N6267HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6267HE3/54.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,966
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Product details
Overview
1N6267HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 6.45 V to 7.14 V breakdown voltage (VBR) at 10 mA, 5.80 V maximum standoff voltage (VWM), 1000 µA maximum reverse leakage at VWM, 143 A peak pulse current (IPPM), and clamps transients to 10.5 V at rated surge. It is used in automotive ECUs, industrial I/O modules, and telecom power supplies to protect MOSFETs and ICs from inductive switching surges.
For engineers reviewing the 1N6267HE3/54 datasheet, 1N6267HE3/54 pinout, 1N6267HE3/54 application, or 1N6267HE3/54 equivalent, key selection criteria include its 1500 W 10/1000 µs peak pulse power rating, AEC-Q101 qualification (HE3 suffix), RoHS-compliant matte tin-plated leads, and 1.5KE case package with cathode band marking.
Technical Context
This unidirectional TVS diode operates as a voltage-clamping device that enters avalanche conduction when transient voltage exceeds its VBR threshold, limiting downstream voltage to ≤10.5 V at 143 A. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance.
It is rated for -55 °C to +175 °C operating junction temperature, supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits 0.057 %/°C temperature coefficient of VBR - enabling predictable clamping behavior across automotive and industrial thermal environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA - defines precise avalanche initiation window for reliable overvoltage triggering |
| VWM | 5.80 V - maximum continuous DC or RMS voltage the device blocks without leakage exceeding 1000 µA |
| IPPM | 143 A at 10/1000 µs waveform - quantifies surge-handling capacity for lightning or inductive kick events |
| VC | 10.5 V at IPPM - clamped voltage seen by protected circuit, determining safe margin for downstream 5 V or 3.3 V ICs |
| PPPM | 1500 W - peak transient power dissipation capability under standardized 10/1000 µs surge test condition |
| TJ max | +175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
| Leakage at VWM | 1000 µA - low standby current preserves system efficiency in always-on circuits |
Pinout & Package
1N6267HE3/54 uses the industry-standard Case Style 1.5KE axial-leaded package: molded epoxy body with matte tin-plated leads, 0.375" (9.5 mm) lead length, and cathode indicated by a color band. The device has two terminals: anode and cathode - no internal complexity or multi-pin configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Current exit point during forward conduction; avalanche terminal during reverse surge | Marked with color band; connected to protected line (e.g., 5 V rail) to shunt transients to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable VBR tolerance and long-term reliability under thermal cycling |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| 1500 W peak pulse power (10/1000 µs) | Provides robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges |
| 0.057 %/°C VBR tempco | Minimizes drift in clamping threshold across wide temperature ranges, critical for precision rail protection |
| 10.5 V clamping at 143 A | Delivers <1.5× VWM ratio - tight clamping margin preserves headroom for 5 V logic and analog components |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V microcontroller supply rails in engine control units exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 5 V rail and chassis ground to clamp transients before they reach MCU VDD pins. Use Value: Clamps 100 V/100 ns spikes to ≤10.5 V within <1 ns, preventing latch-up or gate oxide damage in automotive-grade MCUs. | Use Scenario: Safeguarding RS-485 transceiver inputs in factory automation PLC I/O modules subject to cable ESD and ground loop surges. IC Role / Device Role / Timing Role: TVS mounted at connector entry point, cathode to signal line and anode to local ground plane. Use Value: Limits differential-mode transients to <11 V peak, ensuring compliance with IEC 61000-4-2 ±8 kV contact discharge immunity. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding 12 V DC input stage of VoIP phone power supply from induced lightning surges on PoE or external adapters. IC Role / Device Role / Timing Role: Primary clamping device upstream of input filter capacitor and DC-DC controller. Use Value: Absorbs 1500 W surges per IEC 61000-4-5, maintaining output regulation while preventing rectifier or FET failure. | Use Scenario: Suppressing back-EMF from brushed DC motors in smart home appliances (e.g., washing machine control boards). IC Role / Device Role / Timing Role: Mounted across motor terminals or H-bridge outputs to divert inductive energy during PWM commutation. Use Value: Withstands 200 A 8.3 ms surge current, eliminating need for snubber RC networks and reducing board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0A | Lower PPPM (400 W), smaller SMA package, VBR = 6.67–7.37 V, VC = 10.3 V at 38.9 A | Not AEC-Q101 qualified; suited for space-constrained consumer PCBs, not under-hood automotive | Select when board area is limited and surge requirements are ≤400 W; verify thermal derating at >75 °C ambient |
| 1.5KE6.8A-E3/54 | Same electrical specs and 1.5KE package; differs only in HE3 (AEC-Q101) vs. E3 (commercial) qualification | No functional difference in clamping or surge handling; HE3 required for automotive production, E3 acceptable for industrial prototyping | Choose 1.5KE6.8A-E3/54 if AEC-Q101 is not mandated; identical performance with lower cost and broader availability |
Compared with SMAJ6.0A, 1N6267HE3/54 delivers 3.75× higher surge power and automotive qualification; compared with 1.5KE6.8A-E3/54, it adds AEC-Q101 validation for mission-critical vehicle systems without altering electrical behavior or layout.
Availability
1N6267HE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial I/O protection, and telecom power input stages requiring stable component supply and full traceability.
Supply support for 1N6267HE3/54 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, ruggedness, and automotive-grade qualification.
The 1N6267HE3/54 belongs to Vishay's TRANSZORB® 1.5KE family - engineered specifically for high-energy transient suppression in harsh environments where failure is not an option.
FAQ
What is the breakdown voltage range of the 1N6267HE3/54?
The 1N6267HE3/54 has a guaranteed breakdown voltage (VBR) range of 6.45 V to 7.14 V at a test current of 10 mA. This narrow 10.6% tolerance ensures consistent clamping onset across production lots and supports reliable design margins for 5 V systems. The value is measured per JEDEC standard and confirmed in Vishay's 88301 datasheet revision 09-Aug-2022.
Is the 1N6267HE3/54 suitable for automotive applications?
Yes, the 1N6267HE3/54 is AEC-Q101 qualified, as indicated by the "HE3" suffix. It meets stress tests for temperature cycling, humidity, mechanical shock, and surge robustness required for automotive electronic control units, body modules, and sensor interfaces. Its +175 °C maximum junction temperature and validated 1500 W surge capability make it appropriate for under-hood and chassis-mounted systems.
How does the clamping voltage of the 1N6267HE3/54 compare to its standoff voltage?
The 1N6267HE3/54 has a maximum standoff voltage (VWM) of 5.80 V and clamps transients to 10.5 V at its rated peak pulse current of 143 A. This results in a clamping ratio (VC/VWM) of ~1.81 - a tight margin that protects 5 V logic without excessive overvoltage stress. The low ratio is enabled by low incremental surge resistance and optimized junction design.
What package type and marking does the 1N6267HE3/54 use?
The 1N6267HE3/54 uses the axial-leaded Case Style 1.5KE package with molded epoxy body and matte tin-plated leads. It is marked with a single cathode band near one end; no alphanumeric printing is applied. Lead spacing is standard for through-hole mounting, and the device complies with UL 94 V-0 flammability rating per datasheet specification.
Does the 1N6267HE3/54 require a heatsink for normal operation?
No, the 1N6267HE3/54 does not require a heatsink during transient suppression events because its 1500 W rating applies to short-duration (≤1 ms), low-duty-cycle (0.01 %) pulses. For continuous power dissipation, its 6.5 W rating at TL = 75 °C assumes adequate PCB copper area; typical applications rely on its pulsed capability, not steady-state thermal management.
1N6267HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.5V
- Voltage - Breakdown (Min):
- 6.12V
- Voltage - Clamping (Max) @ Ipp:
- 10.8V
- Current - Peak Pulse (10/1000µs):
- 139A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6267HE3/54 FAQ
1.How can I place an order for 1N6267HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6267HE3/54 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 1N6267HE3/54 reliable?
The price and inventory of 1N6267HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6267HE3/54 is usually 5 days.
3.What payment methods are accepted for 1N6267HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6267HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6267HE3/54?
1N6267HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6267HE3/54 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 1N6267HE3/54?
For technical support, including 1N6267HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6267HE3/54 requirements.
6.How does Aetrix verify that 1N6267HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1N6267HE3/54 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1N6267HE3/54 meets industry standards.
7.What is the process for return or replacement of 1N6267HE3/54?
All 1N6267HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6267HE3/54, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 1N6267HE3/54 part is unused and in its original packaging.
Return procedure for 1N6267HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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